Finding the Fourth Proportional to 202,875.20, 304,312.80 and 53,115.20
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Solution
The fourth proportional to 202,875.20, 304,312.80 and 53,115.20 is: 79,672.80
Step by Step Solution
- Step 1: Write the proportion equation
202,875.20 : 304,312.80 = 53,115.20 : x - Step 2: Convert to fraction form
202,875.20/304,312.80 = 53,115.20/x - Step 3: Cross multiply
202,875.20x = 304,312.80 × 53,115.20 - Step 4: Simplify right side
202,875.20x = 16,163,635,234.56 - Step 5: Solve for x
x = 16,163,635,234.56/202,875.20 - Step 6: Final answer
x = 79,672.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.